Loose-leaf binder



R E D Y N s n H LOOSE LEAF BINDER Filed Aug. 9, 1944 2 Sheets-Sheet l INVENTOR HAeEYZS/WZMW ATTORNY Api'il 20, 1948. H. D. SNYDER 2,439,826

LOOSE LEAF BINDER Filed Aug. 9, 1944 2 SheetsS he'et 2 -INVENTOR fmeeyfl fi/vmfe ATTO R N EY Patented Apr. 20, 1948 LOOSE-LEAF BINDER Harry D. Snyder, New York, N. Y., assignor, by

mesne assignments, to Speed Products Company, Inc., Long- Island City, N. Y., a corporation of New York Application August 9, 1944, Serial No. 548,650

This invention is directed to a loose leaf binder and specifically deals with longitudinally adjustable supporting and follower members between which a stack of papers are desirably fastened. One object of the invention is realized in the provision of telescopic guide means disposed longitudinally of the supporting and follower members to facilitate the expansion or contraction of the members widthwise of the stack. A further object resides in the provision of stack fastening members each adapted to be slidably contracted or expanded and each comprising two or more parts having disengageable interlocking means to provide for convenient assembling or.

3 Claims.

tural aspects of the invention will appearfrom the following detailed description considered with the accompanying drawings wherein:

Fig. 1 is a perspective view of the loose leaf fastener according to my invention.

Fig. 2 is an enlarged and broken plan view of Fig. 1.

Fig. 3 is an enlarged longitudinal sectional view of the follower member on the line 3 3 of Fig. 2.

Fig. 4 is an enlarged transverse sectional view on the line 4-4 of Fig. 1.

Fig. 5 is an exploded perspective view illustrating the type of removable connection between a pair of sections of either the stack supporting member or the stack following member.

Fig. 6 is a plan view of Fig. 5 illustrating the pair of sections brought .into an assembled relation but unlocked with respect to the inner margins or bearings of the slidably guided sections.

Fig. 7 is a fragmentary longitudinal sectional view of one of the members wherein the companion sections or bars are initially brought into superimposition preparatory to overlapping.

Fig. 8 is a view similar to Fig. 7, but illustrating the locking lugs of the sections in overlapping relation and each lug being ready to be received in the lug receiving notches of its companion section prior to interlocking with the spaced bearings or flanges thereof. v

Fig; 9 is a sectional view on the line 9-9 of cording to the invention, illustrating the supporting and follower member of the loose leaf binder, each of three slidable and detachable sections.

Fig. 14 is a, perspective view of the intermediate section of the form illustrated in Fig. 13.

The. loose leaf paper binder of Figs. 1 to 12 is characterized by a lower supporting member and an upper compressor member 3|. Each of these members comprises the slidably and longitudinally guided sections or bars 32, 33, 34 and 35 each having an intermediate elongated slot 36, 31, 38 and 39. These members also include the reinforcing and spaced ribs 40, 4!, 42, 43, 44, 45, 46 and 41.

Extending from the inner ends or bridges 48, 49, 50 and 5| of sections 32 to 35 are hollow bosses 52, 53, 54 and 55 having the T-shaped lugs 56, 51, 58 and 59 longer than the width of the slots 35, 37, '38 and 39, below or above which are provided the notches or recesses 60, 6| (concealed by the lug 51 in Figure 1), 62 and 63.

In Figs. 5 and 7 the sections 34 and 35 of the follower member are shown disengaged and separated. In the matter of assembling, these sections are first superimposed to place lower lug 59 under the upper lug 58 (Fig. 8). In Fig. 7 this is about to beachieved. Thereafter movement of one of the sections towards the other causes the upwardly disposed lug 58 of the lower section 34 to enter into the notches 63 in the as upper section. Also at thi time the downwardly inner marginal edges of the slot 39 of section35 and the lower lug 59 of the upper section 35 is slightly below and is ready to be interlocked with the inner marginal edges of the slot 33 of the lower section 34. Now by moving the sections 34. and 35 towards each other lug 59 slidably rides below the lower section 34 and lug 58 slidably rides over the upper section 35. These lugs 58 and 59 frictionally cooperate with the sections 34 and 35, holding them closely together and holding the reinforcing and guide beads 46 and 41 of the upper section on the reinforcing and guide beads 44 and 45 of the lower section. These beads thus provide a slidable connection for rectilinearly guiding these sections relative to each other.

To disengage or dismantle the superimposed and closely but slidably associated sections 34 and 35, the method of assembly is merely reversed. To this end lugs 58 and 59 are slidably moved until they are in alignment with and enter aligned notches 52 and 63 respectively, at which time they are disengaged from marginal edges of the slots 38 and 39. Now these lugs 58 and 59 are in overlapping relation (Fig. 8) but disengaged from the sections 34 and 35. To disengage lugs 58 and 59, sections 34 and 35 are moved towards each other and the sections are free of each other.

In all of the forms disclosed-herein the sections 32 to 35 are slightly bowed and in actual practice the stack of papers are first mounted on thesupporting member 30, the latter being in opposition to the follower section 3|, thatis the supporting member 38 is arranged with its ribs 49 to 43 downwardly as shown and the stack of papers 80 arepositioned thereon.

With the stack of papers'89 mounted on the supporting member 3! and with the paper perforated to accommodate the threaded shanks 8i and.82 of the bolts 83 and 84, the follower 3! is mounted on these shanks-and nuts 85'and 86 are utilized to bring thesupporting and follower members 30 and 3i towards each other to tightly clamp the stackBfi'and for this purpose the nuts-85 and .83 together with the heads of the bolts 83 and 84 cooperate,jfor fastening. the stack.

Inthe form according to Figs. 13 and 14, the supporting member I 98 and clamping follower are trisectional, each being composed of main sections I92 and H15 and endsI03, I04, I05, and I01. The locking lugs N18 to H cooperate with the sections I92 to, l 91.

The outer sections H13, H14, Hi6, and of the form according to Fig. 13' are similar to the sections 32, 33, 34 and 35 in Figs. 1-12 andhave at their inner ends T-shaped lugs I98 to I I5 spatially associated with aligned notches. By this arrangement the outer sections I93 to I91 may be desirably attached or detached fromthe intermediate section as is well understood, and disengageable sections of the embodiment according to Fig. 1 may be used interchangeably with the detachable sections according to the form illustrated in Figs. .l2 and13.

According to the invention it is apparent that the supporting and follower members are similar in construction and the sections of each member may be quickly interlocked and readily unlocked. The members 32 to 35 and I92 to 191 are so arranged that they are concave toward. the stack.

As an additional feature, corresponding sections 34 or 35 may be used together. When so engaged, the sections are likewise adjustable longitudinally and slidably retained. In such event only one lug 58 or 59 would be efiective to slidably engage the other section. Where corresponding sections are used, less stability is obtained.

With the present invention, it is apparent that the sections of a member maybe readily adjusted to accommodate various widths of paper and the limit of expansion of either an upper or lower member is reached when the bosses 52, 53, 54 and 55 abut (see Fig. 12).

I claim:

1. In a fastener, upper and lower closely superimposed sections each having spaced rails defining a longitudinally arranged slot, means slidably guiding said sections longitudinally thereof, said rails of said upper section including alined notch means, a lug extending downwardly from said upper section and spaced from and in alinement with said notch means, said rails of said lower section including alined recess means, a lug projecting upwardly from said lower section and spaced from andin alinement with said recess means, said lug extending from said upper section adapted to be removably received in said recess means and slidably mounted on said rails of said lower section, and said lug extending from said lower section adapted to be removably received by said notch means and slidably mounted on said rails of said upper section.

2. In a fastener, upper and lower closely superimposed sections each having inner rails spaced widthwise thereof and defining a longitudinally arranged slot, means slidably guiding said sections longitudinally thereof, said rails of said upper section including alined notch means, a lug integral with and extending downwardly from said upper section and spaced from and in alinement with said notch means, said rails of said lower section including alined recess means, a lug integral with and projecting upwardly from said lower section and spaced from and in alinement with said recess means, said lug extending from said upper section adapted to be removably received in said recess means to slidably interlock with said rails of said lower section, and said lug extending from said lower section adapted to be removably received by said notch means to slidably interlock with said rails of said upper section.

3. In a fastener, upper and lower closely superimposed sections each having inner rails spaced widthwise thereof and defining a longitudinally arranged slot, means slidably guiding said sections longitudinally thereof, said rails of said upper section including alined notch means, a T-shaped lug integral with and extending downwardly from said upper section and spaced from and in alinement with said notch means, said rails of said lower section including alined recess means, a T-shaped lug integral with and projecting upwardly from said lower section and spaced from and in alinement with said recess means, said lug extending from said upper section adapted to. be removably received in said recess means to slidably interlock with said rails of said lower section, and said lug extending from said lower section adapted to be removably received by said notch means to slidably interlock with said rails of said upper section.

' HARRY D. SNYDER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,0i0,975 Clark Oct. 8, 1912 1,061,897 Bodenhofer May 13, 1913 1,082,848 Dargin Dec. 30, 1913 1,278,779 Springer Sept. 10, 1918 1,303,279 Fisher May 13, 1919 1,687,854 Anderson Oct. 16, 192 8 

